From 8283480fd1ade430fe2829e63cfe45b4ab3d268b Mon Sep 17 00:00:00 2001
From: Noah Masur <7386960+nmasur@users.noreply.github.com>
Date: Sun, 2 Apr 2023 15:52:45 -0400
Subject: [PATCH] rofi brightness menu

---
 modules/nixos/graphical/default.nix           |  4 ++
 modules/nixos/graphical/i3.nix                |  2 +
 modules/nixos/graphical/rofi.nix              |  2 +-
 modules/nixos/graphical/rofi/brightness.nix   | 49 +++++++++++++++++++
 modules/nixos/graphical/rofi/brightness.sh    | 10 ----
 modules/nixos/graphical/rofi/power.nix        |  5 +-
 modules/nixos/graphical/rofi/rofi-prompt.sh   |  3 ++
 .../graphical/rofi/themes/brightness.rasi     |  6 +++
 .../nixos/graphical/rofi/themes/common.rasi   |  5 --
 .../nixos/graphical/rofi/themes/power.rasi    |  5 ++
 10 files changed, 74 insertions(+), 17 deletions(-)
 create mode 100755 modules/nixos/graphical/rofi/brightness.nix
 delete mode 100755 modules/nixos/graphical/rofi/brightness.sh
 create mode 100644 modules/nixos/graphical/rofi/themes/brightness.rasi

diff --git a/modules/nixos/graphical/default.nix b/modules/nixos/graphical/default.nix
index a2927bd..4e2173e 100644
--- a/modules/nixos/graphical/default.nix
+++ b/modules/nixos/graphical/default.nix
@@ -21,6 +21,10 @@
       type = lib.types.str;
       description = "Command to use for switching audio sink";
     };
+    brightnessCommand = lib.mkOption {
+      type = lib.types.str;
+      description = "Command to use for adjusting brightness";
+    };
     toggleBarCommand = lib.mkOption {
       type = lib.types.str;
       description = "Command to hide and show the status bar.";
diff --git a/modules/nixos/graphical/i3.nix b/modules/nixos/graphical/i3.nix
index a861533..53edb05 100644
--- a/modules/nixos/graphical/i3.nix
+++ b/modules/nixos/graphical/i3.nix
@@ -121,6 +121,8 @@ in {
             "Mod1+Tab" = "exec --no-startup-id ${config.altTabCommand}";
             "${modifier}+Shift+period" =
               "exec --no-startup-id ${config.powerCommand}";
+            "${modifier}+Shift+m" =
+              "exec --no-startup-id ${config.brightnessCommand}";
             "${modifier}+Shift+c" = "reload";
             "${modifier}+Shift+r" = "restart";
             "${modifier}+Shift+q" = ''
diff --git a/modules/nixos/graphical/rofi.nix b/modules/nixos/graphical/rofi.nix
index 396219d..ed9d32a 100644
--- a/modules/nixos/graphical/rofi.nix
+++ b/modules/nixos/graphical/rofi.nix
@@ -6,7 +6,7 @@ let
 
 in {
 
-  imports = [ ./rofi/power.nix ];
+  imports = [ ./rofi/power.nix ./rofi/brightness.nix ];
 
   config = lib.mkIf (pkgs.stdenv.isLinux && config.services.xserver.enable) {
 
diff --git a/modules/nixos/graphical/rofi/brightness.nix b/modules/nixos/graphical/rofi/brightness.nix
new file mode 100755
index 0000000..351a9b8
--- /dev/null
+++ b/modules/nixos/graphical/rofi/brightness.nix
@@ -0,0 +1,49 @@
+{ config, pkgs, ... }:
+let
+
+  rofi = config.home-manager.users.${config.user}.programs.rofi.finalPackage;
+
+in {
+
+  # Adapted from:
+  # A rofi powered menu to execute brightness choices.
+
+  config.brightnessCommand = builtins.toString
+    (pkgs.writeShellScript "brightness" ''
+
+      dimmer=""
+      medium=""
+      brighter=""
+
+      chosen=$(printf '%s;%s;%s\n' \
+          "$dimmer" \
+          "$medium" \
+          "$brighter" \
+          | ${rofi}/bin/rofi \
+              -theme-str '@import "brightness.rasi"' \
+              -hover-select \
+              -me-select-entry ''' \
+              -me-accept-entry MousePrimary \
+              -dmenu \
+              -sep ';' \
+              -selected-row 1)
+
+      case "$chosen" in
+          "$dimmer")
+              ${pkgs.ddcutil}/bin/ddcutil --display 1 setvcp 10 25; ${pkgs.ddcutil}/bin/ddcutil --display 2 setvcp 10 25
+              ;;
+
+          "$medium")
+              ${pkgs.ddcutil}/bin/ddcutil --display 1 setvcp 10 75; ${pkgs.ddcutil}/bin/ddcutil --display 2 setvcp 10 75
+              ;;
+
+          "$brighter")
+              ${pkgs.ddcutil}/bin/ddcutil --display 1 setvcp 10 100; ${pkgs.ddcutil}/bin/ddcutil --display 2 setvcp 10 100
+              ;;
+
+          *) exit 1 ;;
+      esac
+
+    '');
+
+}
diff --git a/modules/nixos/graphical/rofi/brightness.sh b/modules/nixos/graphical/rofi/brightness.sh
deleted file mode 100755
index 977f433..0000000
--- a/modules/nixos/graphical/rofi/brightness.sh
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/usr/bin/env bash
-
-# THEME="$HOME/.config/rofi/config.rasi"
-
-ICON_UP=""
-ICON_DOWN=""
-ICON_OPT=""
-options="$ICON_UP\n$ICON_OPT\n$ICON_DOWN"
-chosen="$(echo -e "$options" | rofi -theme-str 'listview { layout:horizontal; }' -dmenu)"
-echo "$chosen"
diff --git a/modules/nixos/graphical/rofi/power.nix b/modules/nixos/graphical/rofi/power.nix
index 9c71802..ea61b2e 100755
--- a/modules/nixos/graphical/rofi/power.nix
+++ b/modules/nixos/graphical/rofi/power.nix
@@ -23,7 +23,10 @@ in {
         "$suspend" \
         "$log_out" \
         | ${rofi}/bin/rofi \
-        -theme-str '@import "power.rasi"' \
+            -theme-str '@import "power.rasi"' \
+            -hover-select \
+            -me-select-entry ''' \
+            -me-accept-entry MousePrimary \
             -dmenu \
             -sep ';' \
             -selected-row 2)
diff --git a/modules/nixos/graphical/rofi/rofi-prompt.sh b/modules/nixos/graphical/rofi/rofi-prompt.sh
index fea1bfe..f304b4e 100755
--- a/modules/nixos/graphical/rofi/rofi-prompt.sh
+++ b/modules/nixos/graphical/rofi/rofi-prompt.sh
@@ -31,6 +31,9 @@ done
 
 chosen=$(printf '%s;%s\n' "$yes" "$no" |
     rofi -theme-str '@import "prompt.rasi"' \
+        -hover-select \
+        -me-select-entry '' \
+        -me-accept-entry MousePrimary \
         -p "$query" \
         -dmenu \
         -sep ';' \
diff --git a/modules/nixos/graphical/rofi/themes/brightness.rasi b/modules/nixos/graphical/rofi/themes/brightness.rasi
new file mode 100644
index 0000000..9c45755
--- /dev/null
+++ b/modules/nixos/graphical/rofi/themes/brightness.rasi
@@ -0,0 +1,6 @@
+@import "common.rasi"
+
+#window {
+  width: 605px;
+  height: 230px;
+}
diff --git a/modules/nixos/graphical/rofi/themes/common.rasi b/modules/nixos/graphical/rofi/themes/common.rasi
index 8e5ee97..bc3a265 100644
--- a/modules/nixos/graphical/rofi/themes/common.rasi
+++ b/modules/nixos/graphical/rofi/themes/common.rasi
@@ -33,11 +33,6 @@
   vpn-textbox-prompt-colon-padding:     @network-textbox-prompt-colon-padding;
 }
 
-#window {
-  width: 980px;
-  height: 230px;
-}
-
 /**
  * Settings used in every rofi option menu:
  */
diff --git a/modules/nixos/graphical/rofi/themes/power.rasi b/modules/nixos/graphical/rofi/themes/power.rasi
index abe5b23..719783c 100644
--- a/modules/nixos/graphical/rofi/themes/power.rasi
+++ b/modules/nixos/graphical/rofi/themes/power.rasi
@@ -1 +1,6 @@
 @import "common.rasi"
+
+#window {
+  width: 980px;
+  height: 230px;
+}